FINAL A&P EXAM Radiography

Refers to dense, hard bone tissue found primarily in the shafts of long bones and on the outer surfaces of other bones.

• Spongy bone

• Cancellous bone

• Compact bone

• Cartilage

Enlarged ends of the long bone. Articulates with a second bone at a joint. covered by cartilage. Spongy bone covered by compact bone.

• Diaphysis

• Medullary cavity

• Endosteum

• Epiphysis

The ribs directly below the true ribs that attach indirectly to the sternum by cartilage or do not attach at all

• Floating ribs

• True ribs

• False ribs

• Cartilar

Band of hyaline cartilage located near the proximal and distal ends of a growing long bone. also known as the growth plate. Longitudinal bone growth occurs

• Ephyphyseal line

• Articular Cartilage

• Epiphyseal disc

• Suture

One of the contractile proteins in muscle; forms the thin filaments

• Myosin

• Sarcomere

• Z-Band

• Actin

Consists of a single motor neuron and the muscle fibers that are supplied by the motor neuron.

• Motor neuron

• Sarcomere

• Motor unit

• Sarcoplasm

Myosin heads make contact with actin heads. Myosin heads rotate. Actin is pulled to the center of the sarcomere. Sarcomere shortens (muscle contracts).

• Action Potential

• Threshold

• Sliding filament theory

• Depolarization

Muscle attaches to the stationary bone

• Insertion

• Prime mover

• Prime mover

• Origin

Found in walls of visceral muscle, tubes and passageways, bronchioles, and blood vessels. Involuntary muscle. Not striated. Stretchiness allows expansion of organs. Better capacity for regeneration

• Skeletal Muscles

• Cardiac Muscles

• Striated Muscles

• Smooth Muscles

Largest muscle in the body. Forms the buttock and is the muscle on which you sit. Origins on the ilium, and sacrum and inserts on the femur. Rotates thigh laterally and extends the thigh at the hip

• Femoral

• Gluteus maximus

• Romboid

• Tibialis anterior